98971 + Interview Questions in Primary School in Math

1.	5× 25+{(-4)×(-16-8÷2)} please solve
Answer» Answer: Here is the Solution of your question Hope it HELPS you Have a nice DAY

1.

5× 25+{(-4)×(-16-8÷2)} please solve

Answer»

Answer:

Here is the Solution of your question

Hope it HELPS you

Have a nice DAY

Discussion

2.	Find the length of the diagonal of a rectangle whose sides are 24a and 7a units.
Answer» Answer: Diagonal of rectangle = 25a units Step-by-step explanation: Given: Length of rectangle = 24a Breadth of rectangle = 7a To find: Length of diagonal of rectangle = ? SOLUTION: The diagonal of a rectangle divides it into 2 right angled triangles. Applying PYTHAGORAS THEOREM, (Diagonal)² = (Length)² + (Breadth)² ➝ (Diagonal)² = (24a)² + (7a)² ➝ (Diagonal)² = 576a² + 49a² ➝ (Diagonal)² = 625a² ➝ Diagonal = √625a² ➝ Diagonal = 25a ∴ Diagonal = 25a units

2.

Find the length of the diagonal of a rectangle whose sides are 24a and 7a units.

Answer»

Answer:

Diagonal of rectangle = 25a units

Step-by-step explanation:

Given:

Length of rectangle = 24a
Breadth of rectangle = 7a

To find:

Length of diagonal of rectangle = ?

SOLUTION:

The diagonal of a rectangle divides it into 2 right angled triangles.

Applying PYTHAGORAS THEOREM,

(Diagonal)² = (Length)² + (Breadth)²

➝ (Diagonal)² = (24a)² + (7a)²

➝ (Diagonal)² = 576a² + 49a²

➝ (Diagonal)² = 625a²

➝ Diagonal = √625a²

➝ Diagonal = 25a

∴ Diagonal = 25a units

Discussion

3.	Q.11 Find simple interest on Rs. 1000 for 3 years at 10% perannum.
Answer» Simple INTEREST = P X t X R / 100 = 1000 X 3 X 10 / 100 =300 Simple interest = ₹ 300

Discussion

4.	Write the place values of the underlined digitsa)79.35(5 underlined)b)9.127(1 underlined)c)74.091(7 underlined)d)3.024(4 underlined)
Answer» Answer: a)79.35 Step-by-step EXPLANATION: WRITE the PLACE values of the underlined digits 79.35

4.

Write the place values of the underlined digitsa)79.35(5 underlined)b)9.127(1 underlined)c)74.091(7 underlined)d)3.024(4 underlined)

Answer»

Answer:

a)79.35

Step-by-step EXPLANATION:

WRITE the PLACE values of the underlined digits 79.35

Discussion

5.	-11 2 3-4 -3 -2 (1) 05-6-8) =13
Answer» ANSWER: -1 1 2 3-4 -3 -2 (1) 05-6-8) = -1159

5.

-11 2 3-4 -3 -2 (1) 05-6-8) =13

Answer»

ANSWER:

-1 1 2 3-4 -3 -2 (1) 05-6-8) = -1159

Discussion

6.	Q-If the area of a trapezium is 28 m2, and two parallel sides are 8 m and 60 dmrespectively, find the altitude.
Answer» Answer: The altitude of trapezium is 4m. Step-by-step EXPLANATION: Area of trapezium = 1/2 ×( SUM of II sides) × height Given :- Area = 28 m^2 parallel sides = 8M, 60dm ( 6m) Sum of parallel sides = 8 + 6 = 14 m Now, 28 m^2 = 1/2 × 14 × height 28/7 = height 4 m = height. ☆ The altitude of trapezium is 4m. hope it helps :)

6.

Q-If the area of a trapezium is 28 m2, and two parallel sides are 8 m and 60 dmrespectively, find the altitude.

Answer»

Answer:

The altitude of trapezium is 4m.

Step-by-step EXPLANATION:

Area of trapezium = 1/2 ×( SUM of II sides) × height

Given :-

Area = 28 m^2

parallel sides = 8M, 60dm ( 6m)

Sum of parallel sides = 8 + 6 = 14 m

Now,

28 m^2 = 1/2 × 14 × height

28/7 = height

4 m = height.

☆ The altitude of trapezium is 4m.

hope it helps :)

Discussion

7.	Keeping the place of 6 in the number 6350947 same, the smallest number obtained by rearranging other digits is?
Answer» Answer: Mark me as brainliest to improve my rank Here is your answer: Step-by-step explanation: KEEPING the PLACE of 6 in the number 6350947 same, the SMALLEST number OBTAINED by rearranging other digits is *6034579*

7.

Keeping the place of 6 in the number 6350947 same, the smallest number obtained by rearranging other digits is?

Answer»

Answer:

Mark me as brainliest to improve my rank

Here is your answer:

Step-by-step explanation:

KEEPING the PLACE of 6 in the number 6350947 same, the SMALLEST number OBTAINED by rearranging other digits is 6034579

Discussion

8.	X/3+5/2 = -3/2 please answer this fast
Answer» Answer: Here is the SOLUTION of your question Hope it helps you Have a nice DAY

8.

X/3+5/2 = -3/2 please answer this fast

Answer»

Answer:

Here is the SOLUTION of your question

Hope it helps you

Have a nice DAY

Discussion

9.	20 ÷ (-10) ÷(-5) please answer I will make y you brilliant
Answer» Answer: 0.4 20 ÷ (-10) ÷(-5)=0.4 Have a great day AHEAD army!!

9.

20 ÷ (-10) ÷(-5) please answer I will make y you brilliant

Answer»

Answer: 0.4

20 ÷ (-10) ÷(-5)=0.4

Have a great day AHEAD army!!

Discussion

10.	Q.10 Express 25% as a fraction.
Answer» Answer: 25/100 Step-by-step explanation: 25/100 2.5/10 2.5

10.

Q.10 Express 25% as a fraction.

Answer»

Answer:

25/100

Step-by-step explanation:

25/100

2.5/10

2.5

Discussion

11.	Solve all questions please
Answer» ANSWER: (i) (3/10) 0 is the answer (II). (5/11) 7 (5/11)7 (5/11) = 0 (iii) 10 (iv). 0 (v). 4 (vi) -2

11.

Solve all questions please

Answer»

ANSWER:

(i) (3/10) 0 is the answer

(II). (5/11) 7 (5/11)7

(5/11) = 0

(iii) 10

(iv). 0

(v). 4

(vi) -2

Discussion

12.	In cuboid 1=4cmb=2cm, h=1 cm then volume
Answer» ANSWER: PLZ MARK AS BRAINLIEST ! Step-by-step explanation: LENGTH - 4 cm , Breadth - 2 cm , HEIGHT - 1 cm So , the volume of cuboid = l ×b × h = 4 × 2 × 1 = 8 cm^3

12.

In cuboid 1=4cmb=2cm, h=1 cm then volume

Answer»

ANSWER:

PLZ MARK AS BRAINLIEST !

Step-by-step explanation:

LENGTH - 4 cm , Breadth - 2 cm , HEIGHT - 1 cm

So , the volume of cuboid = l ×b × h = 4 × 2 × 1 = 8 cm^3

Discussion

13.	Activity 3 Answer the following
Answer» ANSWER: *Answer:MARK ME AS BRAINLIAST ANSWER* *Answer:MARK ME AS BRAINLIAST ANSWER*

13.

Activity 3 Answer the following

Answer»

ANSWER:

Answer:MARK ME AS BRAINLIAST ANSWER

Discussion

14.	Explain pls fast fast
Answer» Answer: 0 Step-by-step EXPLANATION: as the 0 is MULTIPLIED by 0

14.

Explain pls fast fast

Answer»

Answer:

0

Step-by-step EXPLANATION:

as the 0 is MULTIPLIED by 0

Discussion

15.	Verify Associative property of multiplication using the rational numbers 3/ 4 , 4 /5 and 5/6
Answer» ★ How to do :- Here, we are given with three fractions in which we are asked to verify the associative property with all those three NUMBERS. For associative property we always need correctly three numbers or fractions. Here, we are given with all the required fractions. In one side, we group the first two numbers with brackets and on the other side, we group the last two numbers. We can also interchange the brackets on both LHS and RHS at a time so that it's VALUE doesn't CHANGE. So, let's solve!! $\:$ ➤ Solution :- Associative property says that, ${\tt \leadsto \boxed{\tt \bigg( \dfrac{3}{4} \times \dfrac{4}{5} \bigg) \times \dfrac{5}{6}} = \boxed{\tt \dfrac{3}{4} \times \bigg( \dfrac{4}{5} \times \dfrac{5}{6} \bigg)}}$ Let's solve LHS and RHS separately. LHS :- ${\tt \leadsto \bigg( \dfrac{3}{4} \times \dfrac{4}{5} \bigg) \times \dfrac{5}{6}}$ First, we should solve the numbers given in bracket. ${\tt \leadsto \bigg( \dfrac{3 \times 4}{4 \times 5} \bigg) \times \dfrac{5}{6}}$ Multiply the numerator and denominator given in bracket. ${\tt \leadsto \dfrac{12}{20} \times \dfrac{5}{6}}$ Now, let's multiply the remaining numbers. ${\tt \leadsto \dfrac{12 \times 5}{20 \times 6} = \dfrac{60}{120}}$ Write the obtained fraction in lowest form by cancellation method. ${\tt \leadsto \cancel \dfrac{60}{120} = \dfrac{1}{2} \: - - - \sf LHS}$ $\:$ RHS :- ${\tt \leadsto \dfrac{3}{4} \times \bigg( \dfrac{4}{5} \times \dfrac{5}{6} \bigg)}$ First, we should solve the numbers given in bracket. ${\tt \leadsto \dfrac{3}{4} \times \bigg( \dfrac{4 \times 5}{5 \times 6} \bigg)}$ Multiply the numerator and denominator given in the bracket. ${\tt \leadsto \dfrac{3}{4} \times \dfrac{20}{30}}$ Now, let's multiply the remaining numbers. ${\tt \leadsto \dfrac{3 \times 20}{4 \times 30} = \dfrac{60}{120}}$ Write the obtained fraction in lowest form by cancellation method. ${\tt \leadsto \cancel \dfrac{60}{120} = \dfrac{1}{2} \: - - - \sf RHS}$ $\:$ Now, we can compare the fractions by seeing that whether they are equal or not. ${\tt \leadsto \dfrac{1}{2} = \dfrac{1}{2}}$ So, $\sf \leadsto LHS = RHS$ $\:$ Hence VERIFIED !!

15.

Verify Associative property of multiplication using the rational numbers 3/ 4 , 4 /5 and 5/6

Answer»

★ How to do :-

Here, we are given with three fractions in which we are asked to verify the associative property with all those three NUMBERS. For associative property we always need correctly three numbers or fractions. Here, we are given with all the required fractions. In one side, we group the first two numbers with brackets and on the other side, we group the last two numbers. We can also interchange the brackets on both LHS and RHS at a time so that it's VALUE doesn't CHANGE. So, let's solve!!

$\:$

➤ Solution :-

Associative property says that,

${\tt \leadsto \boxed{\tt \bigg( \dfrac{3}{4} \times \dfrac{4}{5} \bigg) \times \dfrac{5}{6}} = \boxed{\tt \dfrac{3}{4} \times \bigg( \dfrac{4}{5} \times \dfrac{5}{6} \bigg)}}$

Let's solve LHS and RHS separately.

LHS :-

${\tt \leadsto \bigg( \dfrac{3}{4} \times \dfrac{4}{5} \bigg) \times \dfrac{5}{6}}$

First, we should solve the numbers given in bracket.

${\tt \leadsto \bigg( \dfrac{3 \times 4}{4 \times 5} \bigg) \times \dfrac{5}{6}}$

Multiply the numerator and denominator given in bracket.

${\tt \leadsto \dfrac{12}{20} \times \dfrac{5}{6}}$

Now, let's multiply the remaining numbers.

${\tt \leadsto \dfrac{12 \times 5}{20 \times 6} = \dfrac{60}{120}}$

Write the obtained fraction in lowest form by cancellation method.

${\tt \leadsto \cancel \dfrac{60}{120} = \dfrac{1}{2} \: - - - \sf LHS}$

$\:$

RHS :-

${\tt \leadsto \dfrac{3}{4} \times \bigg( \dfrac{4}{5} \times \dfrac{5}{6} \bigg)}$

First, we should solve the numbers given in bracket.

${\tt \leadsto \dfrac{3}{4} \times \bigg( \dfrac{4 \times 5}{5 \times 6} \bigg)}$

Multiply the numerator and denominator given in the bracket.

${\tt \leadsto \dfrac{3}{4} \times \dfrac{20}{30}}$

Now, let's multiply the remaining numbers.

${\tt \leadsto \dfrac{3 \times 20}{4 \times 30} = \dfrac{60}{120}}$

Write the obtained fraction in lowest form by cancellation method.

${\tt \leadsto \cancel \dfrac{60}{120} = \dfrac{1}{2} \: - - - \sf RHS}$

$\:$

Now, we can compare the fractions by seeing that whether they are equal or not.

${\tt \leadsto \dfrac{1}{2} = \dfrac{1}{2}}$

So,

$\sf \leadsto LHS = RHS$

$\:$

Hence VERIFIED !!

Discussion

16.	20 ÷ (-10) ÷(-5) division is asosiative or not , if not so how
Answer» Step-by-step explanation: 20÷2 10 20÷-10=-5 20÷-5=-4 -4+-5=9 not ASSOCIATIVE

16.

20 ÷ (-10) ÷(-5) division is asosiative or not , if not so how

Answer»

Step-by-step explanation:

20÷2

10

20÷-10=-5

20÷-5=-4

-4+-5=9

not ASSOCIATIVE

Discussion

17.	The median of the following date. 14.4find the values of x & y such the totalfrequency(class intervel frequencyis 0 - 66-1212-1818-2424- 30 frequency are 4,X,5 ,y,1
Answer» Answer: 123456789012345678901234567890

17.

The median of the following date. 14.4find the values of x & y such the totalfrequency(class intervel frequencyis 0 - 66-1212-1818-2424- 30 frequency are 4,X,5 ,y,1

Answer»

Answer:

123456789012345678901234567890

Discussion

18.	5+8(5478998-783586295)78X218438324
Answer» ANSWER: ERROR Step-by-step EXPLANATION:

18.

5+8(5478998-783586295)78X218438324

Answer»

ANSWER:

ERROR

Step-by-step EXPLANATION:

Discussion

19.	What is Peace and Harmony??
Answer» Peɑce ɑnd hɑrmony meɑn deɑling with disputes ɑnd resolving CONFLICTS fɑirly ɑnd PROPERLY with neutrɑlizɑtion ɑnd Middle Wɑy principles to further the welfɑre of eɑch individuɑl ɑs well ɑs the wellbeing of mɑnkind ɑs ɑ whole. Peɑce ɑnd hɑrmony is LONG lɑsting vɑlue. ... Peɑce ɑnd hɑrmony is high wisdom. I *HOPE* *this* *will* *help* *you* *DEAR.. Always* *stay* *safe* *and* *stay* *healthy*..

19.

What is Peace and Harmony??

Answer»

Peɑce ɑnd hɑrmony meɑn deɑling with disputes ɑnd resolving CONFLICTS fɑirly ɑnd PROPERLY with neutrɑlizɑtion ɑnd Middle Wɑy principles to further the welfɑre of eɑch individuɑl ɑs well ɑs the wellbeing of mɑnkind ɑs ɑ whole. Peɑce ɑnd hɑrmony is LONG lɑsting vɑlue. ... Peɑce ɑnd hɑrmony is high wisdom.

I HOPE this will help you DEAR..

Always stay safe and stay healthy..

Discussion

20.	(a²-ab) - (b²-2ab) + 3ab
Answer» ANSWER: a^2 - b^2 - 2AB Step-by-step EXPLANATION: i HOPE RIGHT answer

20.

(a²-ab) - (b²-2ab) + 3ab

Answer»

ANSWER:

a^2 - b^2 - 2AB

Step-by-step EXPLANATION:

i HOPE RIGHT answer

Discussion

21.	Find two rational numbers between -2 and -1 using the rule 12( a + b) lies between a and b.
Answer» Answer: Here is the SOLUTION of your question Hope it HELPS you Have a nice DAY

21.

Find two rational numbers between -2 and -1 using the rule 12( a + b) lies between a and b.

Answer»

Answer:

Here is the SOLUTION of your question

Hope it HELPS you

Have a nice DAY

Discussion

22.	Substitution / elimination method :-solve x and y ::-x/3+y/4=11,5x/6-y/3= -7
Answer» Answer: is ATTACHED Step-by-step explanation: i HOPE this helps U

22.

Substitution / elimination method :-solve x and y ::-x/3+y/4=11,5x/6-y/3= -7

Answer»

Answer:

is ATTACHED

Step-by-step explanation:

i HOPE this helps U

Discussion

23.	Please solve 1 and 2
Answer» Step-by-step EXPLANATION: HOPE you UNDERSTAND THANK you

23.

Please solve 1 and 2

Answer»

Step-by-step EXPLANATION:

HOPE you UNDERSTAND

THANK you

Discussion

24.	Rahul had a rope of 3254 m long. He cut off a 15035m long piece, then he d
Answer» Step-by-step EXPLANATION: lsorry but your QUESTION is not COMPLETE

24.

Rahul had a rope of 3254 m long. He cut off a 15035m long piece, then he d

Answer»

Step-by-step EXPLANATION:

lsorry

but your QUESTION is not COMPLETE

Discussion

25.	In a school 5/8 of the students are boys if there are 240 girls find the number of boys in the school
Answer» ANSWER: PLZ MARK AS BRAINLIEST ! Step-by-step explanation: Fraction of boys = 5/8 Fraction of GIRLS = 1 - 5/8 = 3/8 Let the total NUMBER of students be x So, girls = 3/8 × x 240 = 3/8 × x x = 240×8/3 = 640 Number of boys = 5/8 of 640 = 5/8 × 640 = 400

25.

In a school 5/8 of the students are boys if there are 240 girls find the number of boys in the school

Answer»

ANSWER:

PLZ MARK AS BRAINLIEST !

Step-by-step explanation:

Fraction of boys = 5/8

Fraction of GIRLS = 1 - 5/8 = 3/8

Let the total NUMBER of students be x

So, girls = 3/8 × x

240 = 3/8 × x

x = 240×8/3 = 640

Number of boys = 5/8 of 640

= 5/8 × 640

= 400

Discussion

26.	Verify the following 3+-7/12=-7/12+3
Answer» ANSWER: L.H.S= 3+(-7/12) = 3-7/12 =(36-7)/12 = 29/12 R.H.S= -7/12+3 = (-7+36)/12 = 29/12 L.H.S= R.H.S

26.

Verify the following 3+-7/12=-7/12+3

Answer»

ANSWER:

L.H.S= 3+(-7/12)

= 3-7/12

=(36-7)/12

= 29/12

R.H.S= -7/12+3

= (-7+36)/12

= 29/12

L.H.S= R.H.S

Discussion

27.	What is the difference between the place values of 6 and 3 in 256839 ?
Answer» ANSWER: The DIFFERENCE between the PLACE value of 6 and 3 in 256839 is 5970 . Step-by-step EXPLANATION: PLEASE thks me

27.

What is the difference between the place values of 6 and 3 in 256839 ?

Answer»

ANSWER:

The DIFFERENCE between the PLACE value of 6 and 3 in 256839 is 5970 .

Step-by-step EXPLANATION:

PLEASE thks me

Discussion

28.	Please solve 4 and 5
Answer» Step-by-step explanation: Under normal course of business, goods sold to customers is treated as sale immediately when the goods are sold, with corresponding revenue from such sale being recognized in the prot and loss account. However, when a businessman wants to increase his sales or introduce a new product in the market, he usually faces hardship due to competition prevailing in the market. To counter it, goods are sometimes sent to the customers on sale or RETURN basis. Here, goods sent on ‘approval’ or ‘on return’ basis means goods are delivered to the customers with the option to retain or return them within a specied period. Generally, these transactions take place between a MANUFACTURER (or a wholesaler) and a retailer. In current SCENARIO, this practice is prevalent in case of online sales, where the buyer is given time of few days to return the goods if the buyer believes that the specications of goods are dierent from the same mentioned on website at the time of sale. There may be certain terms and conditions to administrate the return of goods. Following are essentially the features of sale of goods on approval or return basis 5 ) ans is 5

28.

Please solve 4 and 5

Answer»

Step-by-step explanation:

Under normal course of business, goods sold to customers is treated as sale immediately when the goods

are sold, with corresponding revenue from such sale being recognized in the prot and loss account.

However, when a businessman wants to increase his sales or introduce a new product in the market, he

usually faces hardship due to competition prevailing in the market. To counter it, goods are sometimes sent

to the customers on sale or RETURN basis. Here, goods sent on ‘approval’ or ‘on return’ basis means goods are

delivered to the customers with the option to retain or return them within a specied period. Generally,

these transactions take place between a MANUFACTURER (or a wholesaler) and a retailer. In current SCENARIO,

this practice is prevalent in case of online sales, where the buyer is given time of few days to return the goods

if the buyer believes that the specications of goods are dierent from the same mentioned on website at

the time of sale. There may be certain terms and conditions to administrate the return of goods. Following

are essentially the features of sale of goods on approval or return basis

5 ) ans is 5

Discussion

29.	2.09 Without actual multiplication evaluate.252 - 242.
Answer» CORRECT QUESTION - WITHOUT actual multiplication evaluate : (Ⅰ) 25² - 24² CORRECT ANSWER - (Ⅰ) 25² - 24² = (25 + 4) (25 - 4) [applying a² - b² = (a+B)(a-b)] = (49) × (1) = 49 SOME EXPANSIONS - (Ⅰ) (a + b)² = (a² + b² + 2ab) (Ⅱ) (a - b)² = (a² + b² - 2ab) (Ⅲ) (a + b + C)² = (a² + b² + c²) 2(ab+bc+ca) (Ⅳ) (a + b)³ = a³ + b³ + 3ab(a + b) (Ⅴ) (a - b)³ = a³ - b³ - 3ab(a - b) (Ⅵ) (a² - b²) = (a + b) (a - b)

29.

2.09 Without actual multiplication evaluate.252 - 242.

Answer»

CORRECT QUESTION -

WITHOUT actual multiplication evaluate :

(Ⅰ) 25² - 24²

CORRECT ANSWER -

(Ⅰ) 25² - 24²

= (25 + 4) (25 - 4) [applying a² - b² = (a+B)(a-b)]

= (49) × (1)

= 49

SOME EXPANSIONS -

(Ⅰ) (a + b)² = (a² + b² + 2ab)

(Ⅱ) (a - b)² = (a² + b² - 2ab)

(Ⅲ) (a + b + C)² = (a² + b² + c²) 2(ab+bc+ca)

(Ⅳ) (a + b)³ = a³ + b³ + 3ab(a + b)

(Ⅴ) (a - b)³ = a³ - b³ - 3ab(a - b)

(Ⅵ) (a² - b²) = (a + b) (a - b)

Discussion

30.	Using distributive property 504X 35
Answer» Answer: 17620 Step-by-step EXPLANATION: (500+4)X35 35X500 = 35X4 17500. = 120 17500 + 120 = 17620

30.

Using distributive property 504X 35

Answer»

Answer:

17620

Step-by-step EXPLANATION:

(500+4)X35

35X500 = 35X4

17500. = 120

17500 + 120

= 17620

Discussion

31.	Find the solution of the following:(a) (-7) + (+8)(b) (-9) + (+13)(c) (+ 7) + (-10)(d) (+12) + (-7)
Answer» Answer: (a) (-7) + (+8)=1 (b) (-9) + (+13)=4 (c) (+ 7) + (-10)=-3 (d) (+12) + (-7)=5 Step-by-step explanation: hey! here is your answer pls follow and mark me as BRAINALIST

31.

Find the solution of the following:(a) (-7) + (+8)(b) (-9) + (+13)(c) (+ 7) + (-10)(d) (+12) + (-7)

Answer»

Answer:

(a) (-7) + (+8)=1

(b) (-9) + (+13)=4

(c) (+ 7) + (-10)=-3

(d) (+12) + (-7)=5

Step-by-step explanation:

hey! here is your answer

pls follow and mark me as BRAINALIST

Discussion

32.	Top surface of a raised platform is in the shape of a regular octagon as shown in Fig. 11.29(a). Find the area of the octagonal surface.
Answer» $\huge \bf\underline\red{Question}$ Top SURFACE of a raised platform is in the SHAPE of a regular octagon as SHOWN in Fig. 11.29(a). Find the area of the octagonal surface. $\huge \bf\underline\red{Solution}$ $\sf \red {In \: Fig (b), Area \: of \: one \: trapezium \: ABGH}$ $= \: 12 (AH+BG) \times AM$ $= \frac{1}{2} (5 + 11) \times 4 = \frac{1}{2} \times 16 \times 4$ $= 32m {}^{2}$ $\sf \red {Area \: of \: rectangle \: BCFG = \: l \times b}$ $= 11 \times 5 = 55m {}^{2}$ $\sf \red {Area \: of \: Another \: trapezium \: CDEF}$ $= \frac{1}{2} (DE +CF) \times DN$ $= \frac{1}{2} (5 + 11) \times 4 = \frac{1}{2} \times 16 \times 4$ $= 32 m {}^{2}$ $\sf \red{→Area \: of \: Octagonal \: surface \: =}$ $\sf \red { Ar. \: of \: ABGH + Ar. \: of \: BCFG + Ar. \: of \: CDEF}$ $= (32 + 55 + 32)m {}^{2} = 119m {}^{2}$ $\sf \blue {Hence \: Answer is \: 119m {}^{2} }$ $\bf\underline\red{Hope \: It \: Helps \: You!}$

32.

Top surface of a raised platform is in the shape of a regular octagon as shown in Fig. 11.29(a). Find the area of the octagonal surface.

Answer»

$\huge \bf\underline\red{Question}$

Top SURFACE of a raised platform is in the SHAPE of a regular octagon as SHOWN in Fig. 11.29(a). Find the area of the octagonal surface.

$\huge \bf\underline\red{Solution}$

$\sf \red {In \: Fig (b), Area \: of \: one \: trapezium \: ABGH}$

$= \: 12 (AH+BG) \times AM$

$= \frac{1}{2} (5 + 11) \times 4 = \frac{1}{2} \times 16 \times 4$

$= 32m {}^{2}$

$\sf \red {Area \: of \: rectangle \: BCFG = \: l \times b}$

$= 11 \times 5 = 55m {}^{2}$

$\sf \red {Area \: of \: Another \: trapezium \: CDEF}$

$= \frac{1}{2} (DE +CF) \times DN$

$= \frac{1}{2} (5 + 11) \times 4 = \frac{1}{2} \times 16 \times 4$

$= 32 m {}^{2}$

$\sf \red{→Area \: of \: Octagonal \: surface \: =}$

$\sf \red { Ar. \: of \: ABGH + Ar. \: of \: BCFG + Ar. \: of \: CDEF}$

$= (32 + 55 + 32)m {}^{2} = 119m {}^{2}$

$\sf \blue {Hence \: Answer is \: 119m {}^{2} }$

$\bf\underline\red{Hope \: It \: Helps \: You!}$

Discussion

33.	What is the difference between the place value and face value of 8 in 658742 ?
Answer» ANSWER: PLACE VALUE- 8000 face value- EIGHT THOUSAND

33.

What is the difference between the place value and face value of 8 in 658742 ?

Answer»

ANSWER:

PLACE VALUE- 8000

face value- EIGHT THOUSAND

Discussion

34.	The predecessor of 3420200
Answer» ANSWER: PREDECESSOR is Step-by-step explanation: 3420199

34.

The predecessor of 3420200

Answer»

ANSWER:

PREDECESSOR

is

Step-by-step explanation:

3420199

Discussion

35.	X - 3y = 1 , 3x - 2y = 0 ( graph )
Answer» ANSWER: This is your answer Step-by-step explanation: 3x-2y

35.

X - 3y = 1 , 3x - 2y = 0 ( graph )

Answer»

ANSWER:

This is your answer

Step-by-step explanation:

3x-2y

Discussion

36.	6. When 0.02964 is divided by 0.004, what will be the quotient?7. If 1 kg of apples costs 372.20. Find the cost of (a) 6 kg of apples (b) 3.5 kg
Answer» Answer: 6. 7.41 7. (a) 2233.2 (B) 1302.7

36.

6. When 0.02964 is divided by 0.004, what will be the quotient?7. If 1 kg of apples costs 372.20. Find the cost of (a) 6 kg of apples (b) 3.5 kg

Answer»

Answer:

6. 7.41

7. (a) 2233.2

(B) 1302.7

Discussion

37.	2. What should be added to 780,629 so that the sum is exactly divisible by 493?
Answer» ANSWER: should be added-780629 divisible by-493 so, 493/780629 answer=1583 proved

37.

2. What should be added to 780,629 so that the sum is exactly divisible by 493?

Answer»

ANSWER:

should be added-780629

divisible by-493

so, 493/780629

answer=1583

proved

Discussion

38.	Check whether 715,V2 + 21, 1 - 2 are irrational number
Answer» Answer: DJ you can get the SHOP dear I have been working in a bit and I'll get it done this dear Step-by-step EXPLANATION: ha I was just wanted you dear you

38.

Check whether 715,V2 + 21, 1 - 2 are irrational number

Answer»

Answer:

DJ you can get the SHOP dear I have been working in a bit and I'll get it done this dear

Step-by-step EXPLANATION:

ha I was just wanted you dear you

Discussion

39.	1. Students from 128 schools took part in a speed-math competition.Each school sent 62 students. If each student answered 35questions, how many answers were to be checked?
Answer» Answer: 515840 Step-by-step EXPLANATION: I HOPE it HELPS... MARK it as BRAINLIEST

39.

1. Students from 128 schools took part in a speed-math competition.Each school sent 62 students. If each student answered 35questions, how many answers were to be checked?

Answer»

Answer:

515840

Step-by-step EXPLANATION:

I HOPE it HELPS...

MARK it as BRAINLIEST

Discussion

40.	Q5. If α and βare the zeroes of the polynomial 5x2- 8x -4 ,find the value of α+β+αβ.
Answer» Answer: HENCE, the value of α + β + α β will be 4/5 Step-by-step explanation: ✯Given:- Polynomial, 5x^2 - 8x - 4 = 0 α and β are ROOTS of the Equation. ✯To find:- The value of α + β + α β ✯Solution:- Formula ✯ Sum of roots = -(Coefficient of x) / (Coefficient of x^2) ✯ Product of roots = (Constant part) / +(Coefficient of x^2) So, now ==> Sum of roots = - (- 8) / 5 ==> α + β = 8/5 ______________________(1) and, ==> Product of roots = (-4) / 5 ==> α β = - 4 / 5 ____________________(2) Now , ADD both Equation (1) & Equation (2) ==> α + β + α β = 8/5 - 4/5 ==> α + β + α β = (8 - 4)/5 ==> α + β + α β = 4/5 Hence, the value of α + β + α β will be 4/5 Ans. ✯Answer:- Hence the value of α + β + α β will be 4/5 I HOPE it's help you...☺

40.

Q5. If α and βare the zeroes of the polynomial 5x2- 8x -4 ,find the value of α+β+αβ.

Answer»

Answer:

HENCE, the value of α + β + α β will be 4/5

Step-by-step explanation:

✯Given:-

Polynomial, 5x^2 - 8x - 4 = 0

α and β are ROOTS of the Equation.

✯To find:-

The value of α + β + α β

✯Solution:-

Formula

✯ Sum of roots = -(Coefficient of x) / (Coefficient of x^2)

✯ Product of roots = (Constant part) / +(Coefficient of x^2)

So, now

==> Sum of roots = - (- 8) / 5

==> α + β = 8/5 ______________________(1)

and,

==> Product of roots = (-4) / 5

==> α β = - 4 / 5 ____________________(2)

Now , ADD both Equation (1) & Equation (2)

==> α + β + α β = 8/5 - 4/5

==> α + β + α β = (8 - 4)/5

==> α + β + α β = 4/5

Hence, the value of α + β + α β will be 4/5 Ans.

✯Answer:-

Hence the value of α + β + α β will be 4/5

I HOPE it's help you...☺

Discussion

41.	A pair of compasses is used to draw angles. True or False
Answer» ANSWER: FALSE please thank my ans and MARK me an BRAINLIEST

41.

A pair of compasses is used to draw angles. True or False

Answer»

ANSWER:

FALSE please thank my ans and MARK me an BRAINLIEST

Discussion

42.	Write the place - value of the circleddigit:329) 74038
Answer» Answer: 9 DIGIT PLACE value is lakhs 8 ones 3 tens 0 hundreds 4 thousands 7 TEN thousand 9 lakhs the above are the place VALUES of given digits

42.

Write the place - value of the circleddigit:329) 74038

Answer»

Answer:

9 DIGIT PLACE value is lakhs

8 ones

3 tens

0 hundreds

4 thousands

7 TEN thousand

9 lakhs

the above are the place VALUES of given digits

Discussion

43.	Graph the integer - 5,0,2,-7,6,-3
Answer» ANSWER: KLA kla kla kla kla kla kla

43.

Graph the integer - 5,0,2,-7,6,-3

Answer»

ANSWER:

KLA kla kla kla

kla kla kla

Discussion

44.	Plz help im struggling in math so much rn
Answer» Answer: 7 Step-by-step EXPLANATION:

44.

Plz help im struggling in math so much rn

Answer»

Answer:

7

Step-by-step EXPLANATION:

Discussion

45.	Give me answer agsvgvdhdujfkfkf
Answer» ANSWER: jvkfkfgkgfkgkrgjrjffejfjrf is the answer

45.

Give me answer agsvgvdhdujfkfkf

Answer»

ANSWER:

jvkfkfgkgfkgkrgjrjffejfjrf is the answer

Discussion

46.	3/8 + -5/7 also mention wether the answer is a rational number and which property it satisfies.
Answer» YES it is a RATIONAL NUMBER because it is in the FORM of p/Q where q ¢0

46.

3/8 + -5/7 also mention wether the answer is a rational number and which property it satisfies.

Answer»

YES it is a RATIONAL NUMBER because it is in the FORM of p/Q where q ¢0

Discussion

47.	6whole11/14 × 3whole1/2
Answer» ANSWER: the CORRECT answer is 1 WHOLE 5/7

47.

6whole11/14 × 3whole1/2

Answer»

ANSWER:

the CORRECT answer is 1 WHOLE 5/7

Discussion

48.	Find HCE of 62 and 92 of method
Answer» Answer: 62 =231 92=22*23 so HCF is 2

48.

Find HCE of 62 and 92 of method

Answer»

Answer:

62 =2*31

92=2*2*23

so HCF is 2

Discussion

49.	21/24 - 1/4 find the
Answer» Answer: 15/24 5/8 is the answer hope it HELPS you

49.

21/24 - 1/4 find the

Answer»

Answer:

15/24

5/8 is the answer

hope it HELPS you

Discussion

50.	அடமழைஅ) எண்ணை -எண்ணெ ஆ) இருக்குதுஇருக்குது - இருக்கு- அடைமழஅருகாமை - அருகில்விடை:பாம்கோடிட்ட இடத்தை நிரப்புக.கமனிதர்களின் சிந்தனையை ஒரு தலைமுறையிலிருந்து அடுத்த தலைமுறைக்குகொண்டு செல்ல உதவும் கருவி---ஆகும்.
Answer» Answer: I didn't UNDERSTAND this language SORRY can't answer this question

50.

அடமழைஅ) எண்ணை -எண்ணெ ஆ) இருக்குதுஇருக்குது - இருக்கு- அடைமழஅருகாமை - அருகில்விடை:பாம்கோடிட்ட இடத்தை நிரப்புக.கமனிதர்களின் சிந்தனையை ஒரு தலைமுறையிலிருந்து அடுத்த தலைமுறைக்குகொண்டு செல்ல உதவும் கருவி---ஆகும்.

Answer»

Answer:

I didn't UNDERSTAND this language SORRY can't answer this question

Discussion

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So, now

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